A comment: I'd general tend to avoid or at least minimize and localize changes to out-of-the-box JSP pages.
You could always create your own page for such a list and add a link to it here if you felt it was necessary.
Also, I should mention that this information is already present in the page resulting from clicking on any of the server manager links in this page. There's a lot of other information present as well, of course, but this information is in there.